Radio receiver



FIG. 1 is a front perspective view of a radio receiver, showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view;

FIG. 7 is a bottom plan view. 

The ornamental design for a radio receiver, as shown. 